Brake-step.



W. S. ATWOOD.

I BRAKE STEP.

APPLICATION FILED Nov.9, 19M.

LIMJQQQl Pmmmwwnmm niaTTnn sTaTas iaaTniaT cierren.

WILLIAM S. ATWOOD, MQNTREAL, QUEBEC, CANDA.

BRAKE-STEP.

Applicatonvled November 9, 1914. Serial No. 871.055.

To all whom t may concern Be it known that I, WILLIAM S. A'rwoon, acitiaen -ofthe Dominion of Canada, and resident of the -city ofMontreal, in the Province of Quebec and Dominion of Canada., haveinvented certain new and useful lmprovements in Brake-Steps, of whichthe following is ay full, clear, and exact description.

This invention relates to improvements in,

proved and simplified means for supporting the brake ratchet and pawl.

rlhe invention consists essentially of a flanged'plate having aplurality of holes stamped' therein in such a way as to form.

burs projectingvfrom the upper surface of the plate and supportingbrackets secured to the lower side of the plate prefeiably by electricwelding. i

rllhe brake ratchet and directly in the plate, and in a cover strap.

1n the drawings which illustrate the invention: Figure 1 is a plan viewof the brake step complete. plan view of the step with a brake ratchetand pawl and covei' strap removed. Fig. 3 is a front elevation of thestep complete. Fig. 1l is an end elevation. Fig. 5 is a section on theline 5 5, Fig. 1. Fig. 6 is a section of the plate 11 on the line 6-.6,Fig. 1. f

Referring` more particularly to the drawings, 11 designates a sheet ofmetal of rectangular form stamped up to `form an upwardly projectingflange 12' on one long and two short sides, and stamped down to forml adepending flange 13 on the remaining long side, which will be hereaftercalled the outeredge The surface of the plate is for the most partformed with'a number yof regularly .spaced apertures 14 punched frombelow in such a way asto form burs 15 projecting from the upper surfaceof the plate. These' burs give a sure and safe foot hold for a trainmanoperating the brake.

r1`he plate is supported toward each end Y' brackets 16 of stamped sheetmetal suitpawl are ournaled Fig. 2 is a partialy lagainst revolution onthe brake shaft.

ablyx flanged to impart stiffness. These brackets extendfrom tlie rearedge of the plate to. thefrontiedge, and are shrouded behind thedepending flange 13. When placed in position the brackets areelectrically welded to the plate, as shown in Fig. 5, so that the threemembers become one.

Toward one end of the plate the apertures 11 are 4,omitted and twocomparatively large apertures 17 and 18 formed a suitable distanceapart, and also a suitable number of bolt holes 19. The aperture 17which is Specication of Letters Patent. Patmgd gpt; 2L 1915, I

slightly larger than the aperture 18, forms a bearing for the hub oftlie'brake ratchet 20, while the aperture 18 forms a bearing for thetrunnion' 21 of the pawl 22.y A strap 23 is provided overlying theratchet and pawl and as apertures 24 and 25 formed therein correspondingwith the apertures 17 and 18, and designed for the same purpose.

rivets passing through the holes 19 so that it may be removed to replacea broken ratchet or pawl. 1t is obvious that the strap may beelectrically welded to the plate after the ratchet and pawl are inposition, but this has the disadvantage that replacements of the ratchetor pawl are im Yaossible.

The ratchet wheel 20 is made with either square or round bore, asrequired, butpreferably with square bore, for the reason that no pins orkeys are required to hold it The step is made up complete with theratchet and pawl in place,A and the cover strap bolted down, and allthat/is necessary in applying 'the device either' to new or old cars, isto rivet or bolt the brackets to the end of the car and pass the brakeshaft through the ratchet. 1t will thus be seen that there is only onepiece to be handled in shipping or attach- -ing the device to cars sothat great economy of time is effected. rl`he step being formed entirelyof stamped sheet metal is foi all practical purposes unbreakable, and isin addition very much lighter than a cast iron step. V1`he burs on thesurface provide much better foothold than ispossible with either castiron or wooden steps, and the down turned flange on one side providesfor the escape of water and cinders, so that the step will give goodfoothold under all conditions of weather.

Having thus described my invention, what I claim is as follows 1. Abrake step comprising a flanged tread The strap isv secured to the plateby bolts or plate burred on the upper "surface, and

flanged brackete supporting said plate, and Welded thereto.A

` 2. A brake step comprising aanged platey of stamped sheet metal,annular burs formed on the tread surface of said plate, yand flangedbrackets of stamped. Isheet metal Welded to Vsaid plate.

3. A brake stepl comprising a perforated' tread. plate of stamped sheetmetal, having an upstandng flange on the three sides, and a dependingflange on the fourth side, an-

nular burs surrounding the perforatons7 a" 'plurality of flangedbrackets of stamped sheetmetal welded to-the tread plate.

4. A brake step comprising an apertured tread plate, supporting bracketstherefor,

an apertured strap carried by Said plate, a ratchet Wheel having the hubthereof jour- -`naled in the apertures ofthe plate and strap, v

and a trunnoned paWl having the trunnons thereof journaled in theplate-and strap apertures.

5. In a. brake `step, a perforated tread *I 25 standing flange on threesides, anda depending flange on the fourth sde, annular bursSurrounding' certainof said perforatons,

plate of stamped sheet metal having an* up- WILLIAM s. ATWooD.

VVtneSses.:` l A p' v S. R. W. ALLEN,

G. M. MORELAND.

